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Finding the Fourth Proportional to 334.59, 501.90 and 118.20

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Solution

The fourth proportional to 334.59, 501.90 and 118.20 is: 177.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.59 : 501.90 = 118.20 : x
  2. Step 2: Convert to fraction form
    334.59/501.90 = 118.20/x
  3. Step 3: Cross multiply
    334.59x = 501.90 × 118.20
  4. Step 4: Simplify right side
    334.59x = 59,324.58
  5. Step 5: Solve for x
    x = 59,324.58/334.59
  6. Step 6: Final answer
    x = 177.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.